test: Disable several (sub)tests with cli

Reason for each test:
rpc_whitelist.py: Relies on direct RPC calls
wallet_encryption.py: Null characters cannot be passed to suprocess.Popen
wallet_fundrawtransaction.py: multiple checks for wrong types, which have different error messages with cli
wallet_send.py: multiple checks for wrong types

test/functional/wallet_fundrawtransaction.py

@@ -49,6 +49,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         # whitelist peers to speed up tx relay / mempool sync
         self.noban_tx_relay = True
         self.rpc_timeout = 90  # to prevent timeouts in `test_transaction_too_large`
+        self.supports_cli = False
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()